1)https://img27.imageshack.us/img27/3882/b4x.png

2)https://img191.imageshack.us/img191/143/02jf.png

3)https://img838.imageshack.us/img838/496/qvn.png

4)https://img844.imageshack.us/img844/4800/unu0.png

5)https://img834.imageshack.us/img834/6225/5sm4.png

1.
ACOB deltoid olur. köşegenleri dik kesişir.

2.
https://img23.imageshack.us/img23/9996/s511.png

3.
https://img542.imageshack.us/img542/1493/plit.png

4.
https://img24.imageshack.us/img24/9575/zs3.png

5.
https://img19.imageshack.us/img19/8339/18j.png